检索结果-南通市图书馆

Natural polymer-derived photocurable bioadhesive hydrogels for sutureless keratoplasty

在线全文

学校读者我要写书评

暂无评论

Bioactive Materials 2022年第2期7卷 196-209页

作者： Xuan Zhao Saiqun Li xinyue du Weihua Li Qian Wang Dalian He Jin Yuan State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou510623China

Keratoplasty is the gold standard treatment for visual impairment caused by corneal *** use of suturing as the bonding method is the source of many complications following *** available corneal adhesives do not have both adequate adhesive strength and acceptable ***,we developed a photocurable bioadhesive hydrogel which was composed of gelatin methacryloyl and oxidized dextran for sutureless *** bioadhesive hydrogel exhibited high light transmittance,resistance to enzymatic degradation and excellent *** also had higher adhesive strength than commercial adhesives(fibrin glue).In a rabbit model of lamellar keratoplasty,donor corneal grafts could be closely bonded to the recipient corneal bed and remained attached for 56 days by using of this in situ photopolymerized bioadhesive *** operated cornea maintained transparent and *** keratoplasty using bioadhesive hydrogel allowed rapid graft re-epithelialization,typically within 7 *** vivo confocal microscopic and histological evaluation of the operated cornea did not show any apparent abnormalities in terms of corneal cells and ***,this bioadhesive hydrogel is exhibited to be an appealing alternative to sutures for keratoplasty and other corneal surgeries.

关键词： Bioadhesive hydrogels Photocurable Cornea repair Sutureless keratoplasty

柠檬黄拉曼光谱、紫外可见吸收光谱的理论和实验研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

山东化工 2024年第6期53卷 168-170页

作者：刘靓赵宁王楠曲静杜新月孙悦孙海婷陈玉锋牡丹江师范学院化学化工学院黑龙江牡丹江157011

采用密度泛函理论(Density Functional Theory, DFT),在B3LYP/6-31+g(d, p)水平上对柠檬黄分子结构进行了优化,根据频率计算结果,绘制出拉曼光谱图并和实验获得的拉曼光谱谱图、表面增强拉曼光谱图进行了比对,实验和理论计算获得的拉曼... 详细信息

采用密度泛函理论(Density Functional Theory, DFT),在B3LYP/6-31+g(d, p)水平上对柠檬黄分子结构进行了优化,根据频率计算结果,绘制出拉曼光谱图并和实验获得的拉曼光谱谱图、表面增强拉曼光谱图进行了比对,实验和理论计算获得的拉曼光谱图基本上一致。基于势能函数分布的计算,对谱图信息丰富的500~2 000 cm^(-1)拉曼谱带的特征拉曼光谱进行了归属指认。基于含时密度泛函理论,计算了柠檬黄分子的激发态,理论计算得到柠檬黄分子的吸收光谱和实验采集得到的紫外-可见吸收光谱图进行了比对,分析了柠檬黄分子激发态的电子-空穴分布图。

关键词：柠檬黄拉曼光谱表面增强拉曼光谱金属有机框架材料密度泛函理论

Spatial Distribution Pattern and Influencing Factors of Bed-and-breakfasts(B&Bs)from the Perspective of Urban-rural Differences:A Case Study of Jiaodong Peninsula,China

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2024年第4期34卷 752-763页

作者： WANG xinyue MA Qian Management College Ocean University of ChinaQingdao 266100China

There are significant differences between urban and rural bed-and-breakfasts(B&Bs)in terms of customer positioning,economic strength and spatial *** identifying the differences in spatial characteristics and influencing factors of each type,is essential for creating urban and rural B&B agglomeration *** study used density-based spatial clustering of applications with noise(DBSCAN)and the multi-scale geographically weighted regression(MGWR)model to explore similarities and differences in the spatial distribution patterns and influencing factors for urban and rural B&Bs on the Jiaodong Peninsula of China from 2010 to *** results showed that:1)both urban and rural B&Bs in Jiaodong Peninsula went through three stages:a slow start from 2010 to 2015,rapid development from 2015 to 2019,and hindered development from 2019 to ***,urban B&Bs demonstrated a higher development speed and agglomeration intensity,leading to an increasingly evident trend of uneven development between the two sectors.2)The clustering scale of both urban and rural B&Bs continued to expand in terms of quantity and *** B&B clusters characterized by a limited number,but a higher likelihood of transitioning from low-level to high-level *** the number of rural B&B clusters steadily increased over time,their clustering scale was comparatively lower than that of urban B&Bs,and they lacked the presence of high-level clustering.3)In terms of development direction,urban B&B clusters exhibited a relatively stable pattern and evolved into high-level clustering centers within the main urban ***,rural B&Bs exhibited a more pronounced spatial diffusion effect,with clusters showing a trend of multi-center development along the coastline.4)Transport emerged as a common influencing factor for both urban and rural B&Bs,with the density of road network having the strongest explanatory power for their spatial *** terms of differences,populati

关键词： urban-rural bed-and-breakfasts(B&Bs) spatiotemporal evolution density-based spatial clustering of applications with noise(DBSCAN)model multi-scale geographically weighted regression(MGWR) Jiaodong Peninsula China

Corneal biomechanical changes in allergic conjunctivitis

在线全文

学校读者我要写书评

暂无评论

Eye and Vision 2021年第4期8卷 166-174页

作者： Qian Wang Yuqing Deng Saiqun Li xinyue du Xuan Zhao Tingting Zhang Jin Yuan State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-Sen UniversityGuangzhouGuangdongChina

Background:To explore corneal biomechanical changes,identify related factors and determine early indicators of keratoconus(KC)development risk in allergic conjunctivitis(AC)***:A total of 50 patients,including 20 eyes without AC and 30 eyes with AC were enrolled in this *** patients underwent a complete ocular examination,including evaluations of clinical manifestations of AC,corneal tomography and densitometry by Pentacam,corneal biomechanics by Corvis ST,and corneal and epithelial thickness mapping by RTvue optical coherence tomography(OCT).Results:The index of surface variance(ISV),index of vertical asymmetry(IVA),keratoconus index(KI),index of height decentration(IHD)and Belin/Ambrosio enhanced ectasia total deviation index(BAD-D)were significantly higher in the AC group than in the non-allergic conjunctivitis(NAC)group(P<0.05).The tomography and biomechanical index(TBI)was also significantly higher in the AC group(P=0.04).The average epithelial thickness in the 2-7mm annulus was significantly thinner in the AC group than in the NAC group(P<0.05).The average densitometry of the total cornea and the anterior layer were higher in the AC group than in the NAC group(P<0.001).The ISV,IVA,KI,IHD and BAD-D were significantly correlated with the TBI and changes in corneal epithelial thickness in AC patients(P<0.05).The changes in epithelial thickness were closely related to the eye rubbing frequency and allergic sign scores(P<0.05).Conclusions:AC patients should be advised to routinely undergo corneal tomographic and biomechanical measurements,and the TBI could be used as an indicator of KC development risk in AC patients.

关键词： Corneal biomechanics Allergic conjunctivitis Corneal tomography Corneal epithelial thickness mapping Corneal densitometry

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

血流动力学监测技术的临床应用进展

临床心电学杂志 2024年第2期33卷 126-130页

作者：韦雪杜新月刘龙周维卢红蒋桂伸尹晓勤董蔚柴华凤邓国兰重庆医科大学附属第一医院 400016

血流动力学参数是临床上一类重要的监测指标,主要包括血压、中心静脉压、输氧量、心率和心输出量等。这些指标能反映机体的生理及病理变化,从而指导治疗方案的优化,有效进行液体管理。随着医疗技术的进步,实现了血流动力学的监测技术从... 详细信息

血流动力学参数是临床上一类重要的监测指标,主要包括血压、中心静脉压、输氧量、心率和心输出量等。这些指标能反映机体的生理及病理变化,从而指导治疗方案的优化,有效进行液体管理。随着医疗技术的进步,实现了血流动力学的监测技术从有创逐渐向着微创和无创发展,近年来,越来越多的微创和无创监测技术应用于临床。

关键词：血流动力学监测无创心输出量

GAMYB transcription factor LoMYB65 from lily plays a vital role in pollen development

在线全文

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2024年第1期10卷 223-238页

作者： xinyue Liu Ling He Ze Wu Nianjun Teng Key Laboratory of Landscaping Agriculture Ministry of Agriculture and Rural AffairsCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China Key Laboratory of Biology of Ornamental Plants in East China National Forestry and Grassland AdministrationCollege of HorticultureNanjing Agricultural UniversityNanjingJiangsu 210095China Jiangsu Graduate Workstation of Nanjing Agricultural University and Nanjing Oriole Island Modern Agricultural Development Co. Ltd.NanjingJiangsu 210043China

Lily(Lilium spp.)is an important horticultural crop,but its use is limited due to serious pollen contamination *** are many studies on pollen development in model plants,but few on flower crops such as ***(GA)is a large class of hormones and plays an important role in plant vegetative growth and reproductive *** is a group of the R2R3-MYB family upregulated by gibberellin,and plays an important role in anther ***,we isolated a novel GAMYB,named LoMYB65,from lily,which was closely related to the AtMYB65 and AtMYB33 in *** quantitative PCR results showed that LoMYB65 was mainly expressed in lily ***65 could be activated by 288μmol·L^(-1)GA3treatment and the LoMYB65 protein was located in the nucleus and cytoplasm,and had transactivation in yeast and tobacco leaf *** conserved motif within 226 amino acids of the C-terminal of LoMYB65 contributed to its *** of LoMYB65 caused dwarf phenotype,unnormal tapetum development,less seeds of siliques in transgenic Arabidopsis plants,the transgenic plants showed partly male ***,silencing of LoMYB65 with VIGS(Virus Induced Gene Silencing)in lily anthers caused unnormal pollen development and reduced the pollen *** of LoMYB65 in Arabidopsis and silencing of LoMYB65 in lily resulted in decreased pollen counts,so we speculate that LoMYB65 may be ***,these findings suggest that LoMYB65 may play an important role in anther development and pollen formation in ***65 may provide a useful candidate gene for pollenless breeding of lily.

关键词： Lily Anther development Pollen pollution GAMYB VIGS

Hyperspectral remote sensing identification of marine oil emulsions based on the fusion of spatial and spectral features

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2024年第3期43卷 139-154页

作者： xinyue Huang Yi Ma Zongchen Jiang Junfang Yang School of Geography and Marine Science Nanjing UniversityNanjing 210023China First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China Marine Telemetry Technology Innovation Center Ministry of Natural ResourcesQingdao 266061China Harbin Institute of Technology Harbin 150001China China University of Petroleum(East China) Qingdao 266061China

Marine oil spill emulsions are difficult to recover,and the damage to the environment is not easy to *** use of remote sensing to accurately identify oil spill emulsions is highly important for the protection of marine ***,the spectrum of oil emulsions changes due to different water *** remote sensing and deep learning can use spectral and spatial information to identify different types of oil ***,hyperspectral data can also cause information redundancy,reducing classification accuracy and efficiency,and even overfitting in machine learning *** address these problems,an oil emulsion deep-learning identification model with spatial-spectral feature fusion is established,and feature bands that can distinguish between crude oil,seawater,water-in-oil emulsion(WO),and oil-in-water emulsion(OW)are filtered based on a standard deviation threshold–mutual information *** oil spill airborne hyperspectral data,we conducted identification experiments on oil emulsions in different background waters and under different spatial and temporal conditions,analyzed the transferability of the model,and explored the effects of feature band selection and spectral resolution on the identification of oil *** results show the following.(1)The standard deviation–mutual information feature selection method is able to effectively extract feature bands that can distinguish between WO,OW,oil slick,and *** number of bands was reduced from 224 to 134 after feature selection on the Airborne Visible Infrared Imaging Spectrometer(AVIRIS)data and from 126 to 100 on the S185 data.(2)With feature selection,the overall accuracy and Kappa of the identification results for the training area are 91.80%and 0.86,respectively,improved by 2.62%and 0.04,and the overall accuracy and Kappa of the identification results for the migration area are 86.53%and 0.80,respectively,improved by 3.45%and 0.05.(3)The oil emulsion id

关键词： oil emulsions identification hyperspectral remote sensing feature selection convolutional neural network(CNN) spatial-temporal transferability

Molecular Mechanism of Rice Necrotic Lesion for Optimized Yield and Disease Resistance

在线全文

学校读者我要写书评

暂无评论

Rice science 2024年第3期31卷 285-299页

作者： HOU xinyue WANG Yuping QIAN Qian REN Deyong State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengdu 611130China

How to balance rice resistance and yield is an important issue in rice *** with mutated necrotic lesion genes often have persistent broad-spectrum resistance,but this broad-spectrum resistance usually comes at the expense of ***,many necrotic lesion mutants in rice have been identified,and these genes are involved in disease resistance *** review provides a detailed introduction to the characteristics,classification,and molecular mechanisms of necrotic lesion ***,we review the molecular regulatory pathways of genes involved in rice disease ***,we summarize the relationship between resistance and yield in rice using newly developed gene editing *** discuss a rational and precise breeding strategy to better utilize molecular design technology for breeding disease-resistant and high-yield rice varieties.

关键词： rice necrotic lesion regulation mechanism high yield high resistance

Biocatalytic enhancement of laccase immobilized on ZnFe_(2)O_(4) nanoparticles and its application for degradation of textile dyes

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第4期68卷 216-223页

作者： Yuhang Wei Qingpeng Zhu Weiwei Xie xinyue Wang Song Li Zhiming Chen School of Chemical and Environmental Engineering Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and ApplicationAnhui Polytechnic UniversityWuhu 241000China School of Biology and Food Engineering Anhui Polytechnic UniversityWuhu 241000China

Efficient and convenient treatment of industrial dyeing wastewater is of great significance to guarantee human and animal *** work presented the enhanced catalytic activity at pH 3.0 of laccase immobilized on amino-functionalized ZnFe_(2)O_(4) nanoparticles(ZnFe_(2)O_(4)-laccase)and its application for the degradation of textile *** to the existence of a large number of oxygen vacancies on the surface of the ZnFe_(2)O_(4) nanoparticles,negative ions accumulated on the magnetic carriers,which resulted in a harsh optimal pH value of the ZnFe_(2)O_(4)-*** activity assays revealed that the ZnFe_(2)O_(4)-laccase possessed superior pH and thermal stabilities,excellent reusability,and noticeable organic solvent ***,the ZnFe_(2)O_(4) laccase presented efficient and sustainable degradation of high concentrations of textile *** initial decoloration efficiencies of malachite green(MG),brilliant green(BG),azophloxine,crystal violet(CV),reactive blue 19(RB19),and procion red MX-5B were approximately 99.1%,95.0%,93.3%,87.4%,86.1%,and 85.3%,*** 10 consecutive reuses,the degradation rates of the textile dyes still maintained about 98.2%,92.5%,83.2%,81.5%,79.8%and 65.9%,*** excellent dye degradation properties indicate that the ZnFe_(2)O_(4)-laccase has a technical application in high concentrations of dyestuff treatment.

关键词： ZnFe_(2)O_(4)-laccase Catalytic activity Stability and reusability Degradation of textile dye